New healthcare Game design n idea using unity 3d

i will like to have a game , for health , healthcare ... using unity 3d you can advise on it , as I want the game can make player always coming back to play , make them come back website or mobile .. and level for the game also ... so to attract them ... Idea and write out for me for the game i will like to have a game , for health , healthcare ... using unity 3d nda needed i want a new Game Design , you need to do all idea from start to ending .. Idea - story Concept - design document Content design - level&character design Game Mechanics - gameplay User interface / User experience Sound design Platform optimisation Please take note , is not from ready make game code and reskin ... is a new game idea for it from scratch .. using unity 3d , can tell me more , how is the game type ?? i want that many people can come into game online play or offline also can ... muti player and can choose character player , and leveling ,, if that level , cannot win , they can replay or carry on that level again till the pass , when they play again ... about what type ? and is like . Action Action-adventure Adventure Role-playing game Simulation Strategy Arcade style Card, logic and board games do not get game from [login to view URL] or [login to view URL] , to reskin .. thanks .. as want something that is new . and interesting , attracting , fun , game .. and this game will make them always think of coming back to play it or do upgrade .. thanks .. please tell me more of it .. thanks ..